Interchangeable fountain marking pen



Feb. 23, 1937. QELBAUM 2,071,985

INTERCHANGEABLE FOUNTAIN MARKING PEN Filed July 24, 1936 I INVENTOR Henry Oelbaum BY 2 E ATTORNEY Patented Feb. 23, I937 UNlTE STATES INTERCHANGEABLE FOUNTAIN MARKING PEN Henry Oelbaum, Cranston, R. I.', assignor to" Harold Hassenfeld, Providence, R. I.

Application July 24, 1936, Serial No; 92,281-

5 Claims.

This invention relates to new and useful improvements in an interchangeable fountain marking pen.

The invention has for an object the construction of a marking pen which is characterized by a good control of the fluid supply.

Specifically, the invention contemplates the construction of a marking pen which is characterized by a strip of stiif metal having a pair of spaced arms joined at the bottom ends, and a transverse curved portion formed with slits for the passage of ink or paint and adapted to be associated with a corrugated supply holding strip, and arranged with the upper portions of the said strip of metal being curved longitudinally forming a tubular double split shank which may engage a receiving holder.

Furthermore, the invention contemplates arranging the corrugated strip with its upper edge portions curved longitudinally forming a tubular single split shank engaged within said tubular split shank and adapted to frictionally maintain its position when the pen is engaged in a pen holder.

Still further the invention proposes an arrangement whereby the corrugated strip may be positively held in various adjusted positions from the transverse curved portion of the outer strip of material, to control the flow of the ink.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawing, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawing forming a material part of this disclosure:

Fig. 1 is a perspective view of a fountain marking pen upon a holder and constructed according to this invention.

Fig. 2 is a perspective enlarged view of the marking pen shown in Fig. 1, but illustrated per se.

Fig. 3 is an elevational view of Fig. 2.

Fig. 4 is a bottom view of Fig. 2.

Fig. 5 is a perspective view of the interior corrugated strip.

Fig. 6 is a view similar to Fig. 3 but illustrating another embodiment of the invention.

Fig. '7 is a sectional view taken on the line 'I---! of Fig. 6

The fountain marking pen, according to this invention, comprises an outer casing consisting of a strip of stiff metal having a pair of spaced arms I!) and I I joined at their bottom ends in a transverse curved portion I2. This curved portion is formed with a plurality of slits I3 for the passage of ink or paint from between the arms, outwards. The upper portions of the arms Ill and II are longitudinally curved forming curved portions I and II a respectively which together comprise a tubular double split shank.

A corregated strip of stiff material I4 is arranged between the arms I9 and II and has its upper edge portions I l curved longitudinally 10 forming a tubular single split shank M. This shank I4 is adapted to engage coaxially within the shank Ills, ll and frictionally maintain its position when the fountain marking pen is within a holder. In Fig. 1 aholder I I is illustrated formed with a circular recess I 8 at the bottom end adapted to receive the shanks of the marking pen.

In order to engage the shanks into the opening I 8 it is necessary that they be forced together and the pressure between these parts provides the friction, as previously pointed out In Figs. Sand 7 a modified form of the invention hasibeen disclosed which difiers from the prior form in several respects. In the first place the arms I0 and II are relatively much wider than the .arms Iiland II. Between these arms there is a strip I4" which is of substantially the same width as the arms. At the upper portions the side arms I0 and II' are curved longitudinally forming portions Ill and I l comprising a tubular double split shank adapted to engage an opening in a holder.

The upper portion of the corregated strip I4" has its edges longitudinally curved forming a tubular single split shank I4. A headed stud i9 5 is mounted on the inner wall of one of the sections of the outer shank and engages through the said single slit of the inner shank. This headed stud has a friction collar 20 mounted thereon which is adapted to frictionally engage the edges of the 40 slit and so frictionally hold the inner and outer shanks relative to each other.

In this form of the invention it is manually necessary to shift the shanks relative to each other into desired positions, even while the marking pen is not mounted in a pen holder. Furthermore, when the sections of the shanks are forced together when engaging the marking pen into a holder, additional frictional resistance will be created which assists in holding the corrugated strip at a pre-determined position.

While I have illustrated and described the preferred embodiments of my invention, it is to be understood that I do not limit myself to the precise constructions herein disclosed and the right of ink or paint, the upper portion of said arms" being longitudinally curved forming a tubular. double split shank, and a corrugated strip of stiff material between said arms and having its upper edge portions longitudinally curved forming a tubular single split shank disposed within said shank for frictional association,. whenthe sections of the outer shank are forced together into a pen holder.

2. An interchangeable fountain marking pen comprising an outer casing consisting of a strip of stiff material having a pair of spaced arms joined at the bottom ends with a transverse curved portion formed with slits for the passage of ink or paint, the upper portion of said arms being longitudinally curved forming a tubular double split shank, and a corrugated strip of stiff material between said arms and having its upper edge portions longitudinally curved forming a tubular single split shank disposed within said shank for frictional association, when thesections of the outer shank are forced together into a pen holder, the lower flat portions of said spaced arms being relatively much wider than the curved tubular portions.

3. An interchangeable fountain marking pen comprising an outer casing consisting of a strip of stiff material having a pair of spaced arms joined at the bottom-ends with a transverse curved portion formed with slits for the passage of ink or paint, the upper portion of said arms being longitudinally curved forming a tubular double split shank, and acorrugated strip of stiff material between said arms and having its upa tubular single split shank disposed within said shank for frictional association, when the sections of the outer shank are forced together into a pen holder, the single split of the inner shank being out of line with either one of the splits in the outer shank.

4. An interchangeable fountain marking pen comprising an outer casing consisting of a strip of stiff material having a pair of spaced arms joined at the bottom ends with a transverse curved portion formed with slits for the passage of ink or paint, the upper portion of said arms being longitudinally curved forming a tubular double split shank, a corrugated strip of stiff material between said arms and having its upper edge portions longitudinally curved forming a tubular single split shank disposed within said shank for frictional association, when the sections of the outer shank are forced together into a pen holder, and a headed stud mounted on the inner wall of one of the sections of said outer shank and engaging through said single split for frictionally engaging the edges thereof and assisting in maintaining fixed positions.

5. An interchangeable fountain marking pen comprising an outer casing consisting of a strip of stiff material having a pair of spaced arms joined at the bottom ends with a transverse curved portion formed with slits for the passage of ink or paint, the upper portion of said arms being longitudinally curved forming a tubular double split shank, a corrugated strip of stiff ma-. terial between said arms and having its upper edge portions longitudinally curved forming a tubular single split shank disposed within said shank for frictional association, when the sections of the outer shank are forced together into a pen holder, and a headed stud mounted on the inner wall of one of the sections of said outer shank and engaging through said single split for frictionally engaging the edges thereof and assisting in maintaining fixed positions, said headed stud having a resilient collar mounted thereon, the sides of which engage the edges of said single split.

HENRY OELBAUM. 

